What is GIS interoperability?
ESRI protocols and programming interfaces
Overview of OGC and ISO TC211 support
An overview of WMS support in ArcGIS
An overview of WCS support in ArcGIS
An overview of GML support in ArcGIS
Using the GML simple features profile
How to work with GML in ArcGIS
Using supported GML application schemas
Adding new GML application schemas
About WFS support
How to work with WFS using ArcGIS Desktop